.center_dm_ru_chat {   
   padding:0;   
   width:388px;   
   background:#F4F5F6;   
   border:#7c7c7c 1px solid;   
   }   
     
   .handle{   
   margin:0;   
   padding:0   
   }

<script type="text/javascript" src="http://files.cskent.ru/js/mini_chat_dm.js"></script>   
   <div class="center_dm_ru_chat">   
   <a class="handle" href="#">Мини-чат</a>   
   $CHAT_BOX$   
   </div>